Dec 19 12:47:00.499 INFO checking memoryleak47/constraint-lang against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 12:47:00.499 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-5/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/memoryleak47/constraint-lang:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 12:47:00.872 INFO [stdout] 5183e7d4986c37a5b7cd5f940a9c9cc5fdb366f054a70c15ecd18270325a4e30
Dec 19 12:47:00.878 INFO running `"docker" "start" "-a" "5183e7d4986c37a5b7cd5f940a9c9cc5fdb366f054a70c15ecd18270325a4e30"`
Dec 19 12:47:02.592 INFO [stderr]     Checking memchr v1.0.2
Dec 19 12:47:02.900 INFO [stderr]     Checking nom v3.2.1
Dec 19 12:47:05.284 INFO [stderr]     Checking productivity-lang-compiler v0.1.0 (/opt/crater/workdir)
Dec 19 12:47:08.444 INFO [stderr] warning: variant is never constructed: `String`
Dec 19 12:47:08.444 INFO [stderr]    --> src/ast/mod.rs:154:2
Dec 19 12:47:08.444 INFO [stderr]     |
Dec 19 12:47:08.444 INFO [stderr] 154 |     String(String),
Dec 19 12:47:08.444 INFO [stderr]     |     ^^^^^^^^^^^^^^
Dec 19 12:47:08.444 INFO [stderr]     |
Dec 19 12:47:08.444 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 19 12:47:08.444 INFO [stderr] 
Dec 19 12:47:08.444 INFO [stderr] warning: variant is never constructed: `Null`
Dec 19 12:47:08.444 INFO [stderr]    --> src/ast/mod.rs:156:2
Dec 19 12:47:08.444 INFO [stderr]     |
Dec 19 12:47:08.444 INFO [stderr] 156 |     Null, // the `null` expression
Dec 19 12:47:08.445 INFO [stderr]     |     ^^^^
Dec 19 12:47:08.445 INFO [stderr] 
Dec 19 12:47:08.445 INFO [stderr] warning: variant is never constructed: `Array`
Dec 19 12:47:08.445 INFO [stderr]    --> src/ast/mod.rs:159:2
Dec 19 12:47:08.445 INFO [stderr]     |
Dec 19 12:47:08.445 INFO [stderr] 159 |     Array(Vec<Expr>),
Dec 19 12:47:08.445 INFO [stderr]     |     ^^^^^^^^^^^^^^^^
Dec 19 12:47:08.445 INFO [stderr] 
Dec 19 12:47:08.445 INFO [stderr] warning: variant is never constructed: `Tuple`
Dec 19 12:47:08.445 INFO [stderr]    --> src/ast/mod.rs:160:2
Dec 19 12:47:08.445 INFO [stderr]     |
Dec 19 12:47:08.445 INFO [stderr] 160 |     Tuple(Vec<Expr>),
Dec 19 12:47:08.445 INFO [stderr]     |     ^^^^^^^^^^^^^^^^
Dec 19 12:47:08.445 INFO [stderr] 
Dec 19 12:47:08.445 INFO [stderr] warning: variant is never constructed: `Object`
Dec 19 12:47:08.445 INFO [stderr]    --> src/ast/mod.rs:161:2
Dec 19 12:47:08.445 INFO [stderr]     |
Dec 19 12:47:08.445 INFO [stderr] 161 |     Object(HashMap<String, Box<Expr>>), // { f = 2 }
Dec 19 12:47:08.445 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:47:08.445 INFO [stderr] 
Dec 19 12:47:08.445 INFO [stderr] warning: method is never used: `dealloc`
Dec 19 12:47:08.445 INFO [stderr]   --> src/exec/heap.rs:27:2
Dec 19 12:47:08.445 INFO [stderr]    |
Dec 19 12:47:08.445 INFO [stderr] 27 |     pub fn dealloc(&mut self, index: usize) -> Option<V> {
Dec 19 12:47:08.445 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:47:08.445 INFO [stderr] 
Dec 19 12:47:08.821 INFO [stderr] warning: variant is never constructed: `String`
Dec 19 12:47:08.821 INFO [stderr]    --> src/ast/mod.rs:154:2
Dec 19 12:47:08.821 INFO [stderr]     |
Dec 19 12:47:08.821 INFO [stderr] 154 |     String(String),
Dec 19 12:47:08.821 INFO [stderr]     |     ^^^^^^^^^^^^^^
Dec 19 12:47:08.821 INFO [stderr]     |
Dec 19 12:47:08.821 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 19 12:47:08.821 INFO [stderr] 
Dec 19 12:47:08.821 INFO [stderr] warning: variant is never constructed: `Null`
Dec 19 12:47:08.821 INFO [stderr]    --> src/ast/mod.rs:156:2
Dec 19 12:47:08.821 INFO [stderr]     |
Dec 19 12:47:08.821 INFO [stderr] 156 |     Null, // the `null` expression
Dec 19 12:47:08.821 INFO [stderr]     |     ^^^^
Dec 19 12:47:08.821 INFO [stderr] 
Dec 19 12:47:08.821 INFO [stderr] warning: variant is never constructed: `Array`
Dec 19 12:47:08.821 INFO [stderr]    --> src/ast/mod.rs:159:2
Dec 19 12:47:08.821 INFO [stderr]     |
Dec 19 12:47:08.821 INFO [stderr] 159 |     Array(Vec<Expr>),
Dec 19 12:47:08.821 INFO [stderr]     |     ^^^^^^^^^^^^^^^^
Dec 19 12:47:08.821 INFO [stderr] 
Dec 19 12:47:08.821 INFO [stderr] warning: variant is never constructed: `Tuple`
Dec 19 12:47:08.821 INFO [stderr]    --> src/ast/mod.rs:160:2
Dec 19 12:47:08.821 INFO [stderr]     |
Dec 19 12:47:08.821 INFO [stderr] 160 |     Tuple(Vec<Expr>),
Dec 19 12:47:08.821 INFO [stderr]     |     ^^^^^^^^^^^^^^^^
Dec 19 12:47:08.821 INFO [stderr] 
Dec 19 12:47:08.821 INFO [stderr] warning: variant is never constructed: `Object`
Dec 19 12:47:08.821 INFO [stderr]    --> src/ast/mod.rs:161:2
Dec 19 12:47:08.821 INFO [stderr]     |
Dec 19 12:47:08.821 INFO [stderr] 161 |     Object(HashMap<String, Box<Expr>>), // { f = 2 }
Dec 19 12:47:08.821 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:47:08.821 INFO [stderr] 
Dec 19 12:47:08.821 INFO [stderr] warning: method is never used: `dealloc`
Dec 19 12:47:08.821 INFO [stderr]   --> src/exec/heap.rs:27:2
Dec 19 12:47:08.821 INFO [stderr]    |
Dec 19 12:47:08.821 INFO [stderr] 27 |     pub fn dealloc(&mut self, index: usize) -> Option<V> {
Dec 19 12:47:08.821 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:47:08.821 INFO [stderr] 
Dec 19 12:47:08.867 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.34s
Dec 19 12:47:09.952 INFO running `"docker" "inspect" "5183e7d4986c37a5b7cd5f940a9c9cc5fdb366f054a70c15ecd18270325a4e30"`
Dec 19 12:47:10.288 INFO running `"docker" "rm" "-f" "5183e7d4986c37a5b7cd5f940a9c9cc5fdb366f054a70c15ecd18270325a4e30"`
Dec 19 12:47:10.524 INFO [stdout] 5183e7d4986c37a5b7cd5f940a9c9cc5fdb366f054a70c15ecd18270325a4e30